Washington Gardener Certificate: Start Today
Green School
Washington Gardening Course from WSU Extension
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Earn a Washington Gardener Certificate
About the Washington Gardener Certificate course
Frustrated with your garden? Wish you understood Washington’s unique growing conditions better? WSU Extension has been cultivating plants, people, and communities since 1973. Now, you can benefit from that expertise with our Washington Gardener Certificate course.
Become a confident gardener. Green School provides practical skills and knowledge to help you thrive, even in a changing climate. Learn from horticulture experts through flexible online modules, with the option of attending live review sessions via Zoom.
Deepen your understanding of gardening. Over 20 weeks, explore 28 topics including botany, plant identification, entomology, soils, plant problem diagnosis, integrated pest management, and pollinators. Gain the skills and confidence to create the garden of your dreams.
| Delivery | Fully online and flexible |
| Registration Period | August 15, 2025 – September 30, 2025* *Registration begins on August 15 and will remain open until September 30. Online classes begin October 5. Come back August 15 to find the link to register. |
| Cost | $550 |
| Workload (equivalent to 3 semester hour credits) Course schedule | 120+ hours over 20 weeks: • 20 hours of direct instruction • 100+ hours of personal study to complete online training. • Reading chapters, watching videos completing interactive activities. • Passing quizzes with an average of 80% • Passing final with at least an 80% • Be prepared to spend about 4-5 hours per week studying. |